I made an insane difficulty parkour in your creative server. It has 147 jumps and 9 checkpoints. You can get there with /warp E3PK. I had some help from Pud96, zombieboytkd, and Juandacun.
I made a medium or hard map on the Minevast creative server. It's called Camping. The course has 45 jumps and 2 checkpoints. I don't have any warp for the course but its coordinates are: X: -3496 Y: 66 and Z: 1948.
Oh and green_ninja_pr (me) made it